1#!./perl -w
2
3BEGIN {
4    chdir 't' if -d 't';
5    @INC = qw(. ../lib);
6}
7
8BEGIN {
9    use Config;
10
11    require "test.pl";
12
13    if( !$Config{d_crypt} ) {
14        skip_all("crypt unimplemented");
15    }
16    else {
17        plan(tests => 4);
18    }
19}
20
21# Can't assume too much about the string returned by crypt(),
22# and about how many bytes of the encrypted (really, hashed)
23# string matter.
24#
25# HISTORICALLY the results started with the first two bytes of the salt,
26# followed by 11 bytes from the set [./0-9A-Za-z], and only the first
27# eight characters mattered, but those are probably no more safe
28# bets, given alternative encryption/hashing schemes like MD5,
29# C2 (or higher) security schemes, and non-UNIX platforms.
30
31SKIP: {
32	skip ("VOS crypt ignores salt.", 1) if ($^O eq 'vos');
33	ok(substr(crypt("ab", "cd"), 2) ne substr(crypt("ab", "ce"), 2), "salt makes a difference");
34}
35
36$a = "a\xFF\x{100}";
37
38eval {$b = crypt($a, "cd")};
39like($@, qr/Wide character in crypt/, "wide characters ungood");
40
41chop $a; # throw away the wide character
42
43eval {$b = crypt($a, "cd")};
44is($@, '',                   "downgrade to eight bit characters");
45is($b, crypt("a\xFF", "cd"), "downgrade results agree");
46
47